var  highlightcolor='#eafcd5';
	//此处clickcolor只能用win系统颜色代码才能成功,如果用#xxxxxx的代码就不行,还没搞清楚为什么:(
	var  clickcolor='#51b2f6';
	function  changeto(){
	source=event.srcElement;
	if  (source.tagName=="TR"||source.tagName=="TABLE")
	return;
	while(source.tagName!="TD")
	source=source.parentElement;
	source=source.parentElement;
	cs  =  source.children;
	//alert(cs.length);
	if  (cs[1].style.backgroundColor!=highlightcolor&&source.id!="nc"&&cs[1].style.backgroundColor!=clickcolor)
	for(i=0;i<cs.length;i++){
		cs[i].style.backgroundColor=highlightcolor;
	}
	}

	function  changeback(){
	if  (event.fromElement.contains(event.toElement)||source.contains(event.toElement)||source.id=="nc")
	return
	if  (event.toElement!=source&&cs[1].style.backgroundColor!=clickcolor)
	//source.style.backgroundColor=originalcolor
	for(i=0;i<cs.length;i++){
		cs[i].style.backgroundColor="";
	}
	}

	function  clickto(){
	source=event.srcElement;
	if  (source.tagName=="TR"||source.tagName=="TABLE")
	return;
	while(source.tagName!="TD")
	source=source.parentElement;
	source=source.parentElement;
	cs  =  source.children;
	//alert(cs.length);
	if  (cs[1].style.backgroundColor!=clickcolor&&source.id!="nc")
	for(i=0;i<cs.length;i++){
		cs[i].style.backgroundColor=clickcolor;
	}
	else
	for(i=0;i<cs.length;i++){
		cs[i].style.backgroundColor="";
	}
	}
